silicon designs, inc. 1445 nw mall street, issaquah, wa 98027-5344 phone: 425-391-8329 fax: 425-391-0446 web site: www.s ilicondesigns.com [page 1] nov 05 ordering information full scale acceleration model number 5 g 2412-005 10 g 2412-010 25 g 2412-025 50 g 2412-050 100 g 2412-100 silicon designs, inc model 2412 analog open frame triaxial accelerometer 3 axis acceleration sensing contains 3 model 1210 capacitive micromachined accelerometers built-in nitrogen damping 4v differential & .5v to 4.5v single ended outputs low cost open frame design -40 to +85c operation +5 v dc, 21 ma power (typical) responds to dc & ac acceleration non standard ranges available no external reference voltage required serialized for traceability description the model 2412 is a three axis, open frame accelerometer assembly for use in zero to medium frequency instrumentation applications. it contains three model 1210 analog capacitive accelerometers orthogonally mounted on a phenolic frame. overall size is 1.2" x 1.2" x 1.0", weight is 16 grams, and it is easily mounted via two #4 (or m3) screws (not included). an optional calibration test sheet ( 2 412-tst ) is also available which lists the measured bias, operating current and frequency response. operation the model 2412 accelerometer produces three individual analog outputs which can be used either in differential or single ended modes referenced to +2.5 volts. the voltage of each output is proportional to the orthogonal component of the applied acceleration. the model 2412 operates with a single +5 volt power supply and generates its own +2.5 volt reference with an on-board resistive divider. the three sensitive axes are perpendicular to the bottom of each of the individual accelerometer packages, with positive acceleration defined as a force pushing on the bottom of the package. performance operating current is three times the current specified on the model 1210 data sheet. bias calibration error is derated from the model 1210 accelerometer to 1.5% typical and 3% max. for all other performance data, absolute maximum ratings and detailed descriptions of the a op , aon and d v signals, please refer to silicon designs' model 1210 data sheet. mounts via two #4 (or m3) screws. connection is via standard 20 conductor ribbon cable (0.05" centers) & connector (0.10 centers). actual size
silicon designs, inc. 1445 nw mall street, issaquah, wa 98027-5344 phone: 425-391-8329 fax: 425-391-0446 web site: www.s ilicondesigns.com [page 2] nov 05 model 2412 triaxial analog accelerometer module pin connections pin # pin name signal description pin # pin name signal description 1 - (no connection) 2 gnd shield ground 3 - (no connection) 4 gnd shield ground 5 - (no connection) 6 gnd shield ground 7 - (no connection) 8 gnd shield ground 9 aonz negative analog output (z-axis) 10 aopz positive analog output (z-axis) 11 gnd shield ground 12 aonx negative analog output (x-axis) 13 aopx positive analog output (x-axis) 14 gnd shield ground 15 aony negative analog output (y-axis) 16 aopy positive analog output (y-axis) 17 gnd shield ground 18 vdd +5 volt dc power 19 dv deflection voltage (test) input 20 +2.5v 2.5 volt reference * * note: the +2.5v reference is generated on-board and is supplied to pin 20 as a reference for single ended connections.
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